Guanine quadruplexes and their roles in molecular processes

Area of Science:

• Molecular Biology
• Genetics
• Biochemistry

Background:

• Guanine quadruplexes (G4) are crucial secondary DNA and RNA structures involved in fundamental biological processes.
• G4 structure dynamics, regulated by binding proteins, are essential for maintaining genome integrity in prokaryotes and eukaryotes.
• Recent research highlights the expanding functional diversity of G4 structures.

Purpose of the Study:

• To review recent findings on the roles of G4 structures in microbial pathogenesis and stress response.
• To underscore the involvement of G4s in mitochondrial gene function.
• To discuss the interplay between G4s, epigenetic modifications, and potential therapeutic targets.

Main Methods:

• Literature review of recent studies on G4 structures.
• Analysis of G4 roles in microbial pathogenesis and DNA damage response.
• Examination of G4 involvement in mitochondrial gene regulation and epigenetics.

Main Results:

• G4 structures play significant roles in microbial pathogenesis and DNA damaging stress response in bacteria and mammalian cells.
• G4s are implicated in the regulation of mitochondrial gene function.
• Interdependence of G4s and epigenetic modifications, with implications for G4-interacting protein-based therapies.

Conclusions:

• G4 structures are versatile regulators of biological processes with implications in disease.
• Targeting G4 structure dynamics presents a promising therapeutic strategy for cancer and bacterial infections.
• Further research into G4s and their interactions is crucial for understanding genome stability and developing novel treatments.